Showing posts with label chromosome map. Show all posts
Showing posts with label chromosome map. Show all posts

Monday, 17 December 2018

Mapped chromosomes down to 12cMs

Here's my 2018 end of year snapshot overall chromosome map, down to 12cM segments, by assigned Grandparent to give me as good a picture as I can as at now - both for ease of reference and as a measure of progress at the end of 2019.

It was a bit easier than I thought it might be to update the chromosome maps from yesterday down from the 15cMs used for those to the 12cMs minimum segment size used for the below. I had apparently been keeping up with the new smaller matches after all.

Gained a whole 6% more mapped DNA but it took over 450 more segments (from 12 to 15cMs) to add that 6%.
Dec 2018 Chromosome Map, by Grandparent, of 12+cM segments - DNAPainter
Still way too many yellow/orange/brown mysteries in there, hopefully disguising good clues to the brickwalls.

FWIW a table of the numbers of mapped segments per Side and Grandparent, split by 12-15cMs and over 15cMs is thrown in for contemplation.


-->
Side GrdParent 12-15 GT15 Total Result
A Paternal? or Maternal? Side A 4 6 10
B Paternal? or Maternal? Side B 1 6 7
M Ern ANDREWS b. 1881 (TNK) 60 103 163

Ern ANDREWS b. 1881 (TNK) assumed 25 24 49

Honor ROWE b. 1886 (TNK) 43 144 187

Honor ROWE b. 1886 (TNK) assumed 6 8 14

Maternal - branch unknown 86 143 229

Maternal assumed - branch unknown 6 15 21
P Agnes Manson DAVIDSON b. 1885 (OTG) 49 64 113

Agnes Manson DAVIDSON b. 1885 (OTG) assumed 7 3 10

Archibald HENDERSON b. 1883 (OTG) 106 176 282

Archibald HENDERSON b. 1883 (OTG) assumed 20 22 42

Paternal - branch unknown 51 29 80

Paternal assumed - branch unknown 12 12 24
Total Result
476 755 1231


39% 61% 100%
The data comes from the main testing companies, FamilyTreeDNA, MyHeritage, 23andme, ie the ones who actually supply the segment level detail necessary (ie excludes Ancestry who refuses too). With many testers only on their original company it is not always possible to compare matches with known relatives at the right spots for accurate assignments, hence the "assumed" and "unknown" categories.
Do please consider transferring your DNA file to GEDMatch where cross company comparisons may be made!

Saturday, 15 December 2018

And now for the Paternal Chromosome Map

That didn't take as long as I thought to produce!
I've obviously kept up with my mapping down to 15cM segments reasonably well, with only one to assign, although it has been a couple of years since I last did one of these.

Reducing the segment size included down to 12cMs looks like I've not much work needed to redo both the Maternal and Paternal maps to see what increased coverage of my chromosomes that gives me - later.

For now, adding the Paternal down to 15cMs increased coverage to 58% mapped from 749 segments painted to the guilty grandparent (an increase from 30% from 443 segments with just the Maternal allocations painted)

Dec 2018 Paternal - to 15cMs (Segment Mapper)
Dec 2018 Paternal - to 15cMs (DNA Painter)




















and for the two years ago Paternal version, down to 10cMs (Segment Mapper)


Apples and oranges

I'm really concentrating on my (paternal) Amelia MILLAR's brickwall's matches, honest.

But I'm also trying to snapshot my chromosome mapping "progress".

Which appears to be woeful.
Must try harder.
Here are two snapshots approximately about 18 months apart of the Maternal segments I've allocated to a grandparent.  (Unlike last time I posted a chromosome map update, this time a paternal map will follow, shortly.)

The apples/oranges title of this post being because the more recent map only shows segments over 15cMs, so I haven't necessarily really regressed with fewer mapped segments over all.

The data comes from my matches on all the testing companies who provide the required level of detail (segment level matches by chromosome), so excludes any matches found on Ancestry unless the matches have also transferred to GEDMatch, or tested at another company, or transferred their Ancestry file to MyHeritage or FamilyTreeDNA. (Some links/thoughts about testing/transferring here)
It is using extracted segment data from my (private) DNA database of matches run through Kitty Cooper's Segment mapper, aggregating it up to the allocated grandparent.

The equivalent (Dec 2018) data mapped in DNAPainter follows, adding the information that the 443 segments mapped cover about 30% of my DNA.
Can definitely to better.
Wonder if adding in the Paternal will add an equivalent amount of data?
See next post, which may take a while checking out the Paternal / Suspected Paternal, but as yet unmapped to Grandparent/MRCA* segments.
* MRCA = Most Recent Common Ancestor

Maternal chr map by grandparent: Dec 2018
Dec 2018: over 15cMs


Maternal chr map by grandparent: Jun 2017 over 12cMs
Jun 2017: over12cMs




DNAPainter Maternal by Grandparent Dec 2018 : over 15cMs

Thursday, 29 June 2017

Maternal side Chromosome Map update

I see that my Paternal side chromosome map was last published Dec 2016.
The intention was for the companion Maternal side map to follow shortly thereafter, but 2017 had other plans.
Click to enlarge

A quick reminder for myself of the maternal brickwall ancestors that I hope DNA will one day aid in cracking (see embedded WikiTree Widgets below for each of my maternal grandparent's pedigrees):
  • Jane GIBSON: supposedly born Martock, Somerset in 1812, married Simon ANDREWS in Martock, 1840 and emigrates to New Zealand on the "Timandra", arriving 1842.
  • William AUSTIN: husband of Emma Parker CLINTON - disappears after arrival in Australia;  Emma remarries as a spinster with no children!
  • William CLINTON: married Jemima PARKER in London, 1810 - and had the above daughter Emma Parker CLINTON
Way too many unknown grandparent segments as yet - but I hope that visual phasing* of my 3 first cousins' DNA will reduce that.
*Visual phasing links:
My maternal grandfather's pedigree (WikiTree) - if you are a descendant of any of these PLEASE upload your autosomal DNA file (eg FamilyFinder from FamilyTreeDNA, Ancestry, MyHeritage, 23andme) to GEDMatch.com and contact me.
Every little clue helps.

embeddable family tree updated live from WikiTree

 My maternal grandmother's pedigree (WikiTree)


embeddable family tree updated live from WikiTree


Thursday, 22 December 2016

Paternal side DNA mapping progress (lack thereof) snapshot

Decided to stop work on the DNA matches temporarily and produce a snapshot of DNA segments (10cMs and above) identifiable as being Paternal (see embedded WikiTree Widget below for Dad's pedigree) and able to be allocated to a grandparent, or not as the case may be (see the Chromosome Map Key).

Way too many grey spaces as yet!

Update: I forgot to add the "why".
By identifying as finely as possible where each bit of my dna comes from, it gets much easier to slot new matches into place.
Those of them matching at a spot that therefore looks to be a hint to a brickwall ancestor is then a prime target for further investigation as to how our trees may connect, and/or for any commonality between the trees of the matches at that spot for further leads on the connections.

The prime paternal brickwall ancestors:
Archibald HENDERSON blacksmith at the Bridge of Allan married 1804 to Margaret McEWAN from the Drip Moss, Kincardine by Doune
Amelia MILLAR, born Kippen, Stirlingshire about 1815, mother supposedly Miss CHRYSTAL
John DAVIDSON born Chirnside, Berwickshire about 1817 mother Ann COLLINS .

Some day I'd also like to find out more about:
Jane WIGHT's WIGHT side, Jane being the wife of Peter SINTON
Ann ROBINSON, mother of Walter FAIRBAIRN

Click on the image to enlarge, and check below for an interactive pedigree overview linked to WikiTree
 Looks like I need to recruit more cousins back up from my paternal grandmother Agnes Manson DAVIDSON - ie my Caithness BAIN and MANSON etc lines, or more FAIRBAIRN/DAVIDSONs, where the latter are in rather short supply.
Good sale on at FamilyTreeDNA until the end of the month - give yourself, and me, a Christmas present-  FamilyFinder down to $59US - any takers?

Paternal Grandfather Archibald HENDERSON:

embeddable family tree updated live from WikiTree



Paternal Grandmother Agnes Manson DAVIDSON:
embeddable family tree updated live from WikiTree


Wednesday, 12 October 2016

Chromosome Map review

Time to see if I'm progressing.

"Progress" here is defined as having formed all my segment matches into groups, and hopefully assigned to a "side".
This assignment is either directly because of a match to a known relative at the same position on a chromosome, or by deduction via a lack of a match to the known relative, at the same position with the smaller segment matches checked at GEDMatch.com where possible.

Last review was back on the 8th  of January (see "How far have I got?"), which chromosome map took all segments of whatever size (usually down to 10cMs).
This time I restricted myself to those 12cMs and above - on left - with the Jan 2016 version on the right
Lorna's Paternal/Maternal chromosome map, Oct 2016
Lorna's Maternal/Paternal segments, Jan 2016

So why am I doing this (I need to remind myself of this every so often!)?
To find those segments that I (or my other tested cousins) potentially inherited from the brickwall ancestors* that got me/us into DNA testing in the first place.
That pretty picture has yet to be produced, but those are the segments I should be focussing on to work with the matches at those spots to find any commonality for hints as to further research into  potential connections.

* the main brickwall ancestors are listed on the 8th January post linked above

There's a very satisfying decrease in the yellow ungrouped, Group A and Group B segments, primarily because of an increase in tested relatives who are starting to pop out of the woodwork faster than I can keep up these days.
The yellow bits are generally singletons - no other matches at the spots concerned to be compared against, but large enough not to be Identical by State (IBS) aka simple coincidental arrangements of DNA that "matches".
The latter two (A and B) are those matches that have been able to be grouped into segments definitely sharing a common ancestor, somewhere/somewhen, but with no ability to compare against known relatives at that spot.
This could be either because none of the known relatives match at that spot, or because different testing companies were involved with no ability to compare at GEDMatch.com.

If you have tested autosomal DNA at any of FamilyTreeDNA (their FamilyFinder test), or Ancestry or 23andme, PLEASE consider maximising your investment in DNA testing by uploading your resulting file to GEDMatch.com.
It has a wonderful range of tools and gives us all the ability to run comparisons to find matches tested at the other companies. All of which helps all of us find our shared ancestry.


Sunday, 24 July 2016

DAW(E) update

Time moves fast in the atDNA world!

No sooner had I prepared an update to the chromsome map showing the atDNA segments identified as being inherited from either Isaac DAWE or Sarah SMITH of Tavistock/Newton Mill/Lumburn, but yet another tested descendant popped up.
Those results haven't been included.

The two updated pages of relevance are:
DNASurnames now has an atDNA section in the DAWE DNA results - which includes a table of relationships as predicted by the shared DNA compared against the known generations to Isaac and Sarah. The table is also interesting in it shows where no detectable match (over 7cMs/700 SNPs) between descendants was found, such is the randomness of atDNA inheritance.
 
My DAWE family page has the updated Chromosome map included.
The page still includes the 2014 version for comparison -we ARE making progress - wonder how many are the SMITH side?.
Already at least some of the purple segments that were only potentially from the DAWE side of   William Rowe/Honor Dawe's ancestry are now identified as DAWE.

The DNASurnames table and segment traceability diagrams can only include those who have uploaded their DNA file to GEDMatch, so neither include the descendant of John DAWE (hatter in Tavistock) and wife Mary FRIEND who popped up on Ancestry as a solid match to myself (Lorna) and also has a smaller match to a descendant of Isaac and Sarah's son Thomas.
Anyone only on ancestry cannot be compared at an appropriate level of detail against the other "cousins" as Ancestry simply does not provide the tools available at either GEDMatch or FamilyTreeDNA.
It would be great to be able to see how likely it is that her John is the John baptized Whitchurch to an Isaac and Sarah.
Working on it, but real life takes priority - sometimes.

Perhaps another descendant of John and Mary might be interested enough to participate?
FamilyFinder test from FamilyTreeDNA or the Ancestry DNA test, but in either case, please upload your file to GEDMatch.
Bear in mind that we still have not definitively proven that Robert DAW in California, born Michigan and father of Mark Walton DAW (b. 1892 Oakland) is one and the same as Robert Henry DAW, son of Isaac Friend DAW who emigrated to Michigan (see prior blog post).
So ideally, descendants of any/all of those mentioned very very welcome to see what we learn about the family relationships from their DNA.

Friday, 8 January 2016

How far have I got?

New year, review time.
Thought it was time to produce some chromosome map snapshots and remind myself why I'm having all this fun (and frustration).
The following illustrates the match coverage on my 23 pairs of chromosomes that has been identified as to which side of my ancestry the match "fits" - maternal or paternal.
The predominance of the pink over the blue makes it rather obvious that I do not have any close living paternal relatives available to test. My two maternal aunts still alive (both in their 90s) have however done their bit to humour their niece, and seem to attract the lion's share of the matches.

Why am I doing this?
To break down, or at least chip, several brickwalls.
Have I succeeded?
Not a lot as yet, but then I never really make time to stop and analyse the gaps in the above and then focus on the matches that have to be related to the ancestors that are causing this descendant so many problems tracking where they came from.

Who are they?
Archibald HENDERSON, a blacksmith at the Bridge of Allan, Stirlingshire.
Where did he come from?
Y-DNA testing has as yet not produced any matches, atDNA has thrown up some intriguing matches that may well lead somewhere eventually.
Amelia MILLAR, mother supposedly a Miss CHRYSTAL. From Kippen in Stirlingshire.
We do have a fascinating match with a family that includes both MILLARs and CHRYSTALs but we need to confirm that this is the line that the matching DNA comes from.
Any descendants of David MILLAR and Elizabeth CHRYSTAL out there willing to try their luck to see if we can prove that.
Jane GIBSON, born Somerset, mother supposedly a Jane GIBSON. Where did she come from?
Although we have a reasonable amount of identified DNA segments from Simon ANDREWS an Jane GIBSON, we don't currently know which bits come from the ANDREWS side and which from the GIBSON side. Any descendants of Simon's siblings out there and willing to test to see what we can learn?
John DAVIDSON, born Chirnside, Berwickshire to an Ann COLLINS. Whereas we have quite a bit of FAIRBAIRN DNA identified from John's wife, specific DAVIDSON segments are hard to identify. Any descendants of any of John's children tested? The New Zealand contingent is fully represented - me, unless others ended up here, as I'm the last living descendant of Adam. His brother James and sister Helen had no known children.
Not forgetting the potential Irish connections of:
William AUSTIN who mysteriously disappeared in Australia presumably before his wife/widow married her ship's captain saying she was single with no former children (so much for my great grandmother who was nearly 2 by then!). My only hope here is to be able to identify more of the DNA inherited from the CLINTON/PARKER side of the family, so I would love to hear from any descendants of William CLINTON and Jemima PARKER who may be intrigued enough to help out here.
William CLINTON above. Someone must know where he came from.

The above are the problem ancestors that stop me completing the rows of ancestors at 3* and 4* great grandparents, the "lines of 32 and 64".
But until then I will continue having fun contacting and working with matches, forming triangulated groups that share an ancestor somewhere/when and seeing where that leads.

With kits either in process or en route to the lab several other theories may well be dis/proven, so there's always something fun to do.

Love to hear from you if any of the above look familiar, especially if you hold the key to the puzzle.

The atDNA tests involved here are either that offered by Ancestry DNA - provided you then upload your resulting raw data file to at least GEDMatch.com (free, donations accepted) and also preferably FamilyTreeDNA ($39US to transfer the file from Ancestry) - or simply directly with FamilyTreeDNA using their FamilyFinder test.
(I've currently gone off using 23andme, their website has been "in transition" for weeks and isn't that useable at the moment, with no current signs of improvement)

If a descendant of any of the above and you do end up on FamilyTreeDNA, do apply to join my autosomal DNA project there, FFLornaHen.

Look forward to making 2016 the year the breakthroughs happen - with YOUR help.

Tuesday, 3 March 2015

Clintons or Austins or Parkers for a change

DNA results just in for another descendant of William CLINTON and Jemima PARKER have given us a few more identifiable segments for our chromosome map.
Click to enlarge
This is presented slightly differently to the last two snap shots in that  the common ancestor(s) to blame for the dna still detectable in descendants today is identified as opposed to the initials of the matches.
As some of the matches descend from Emma Parker CLINTON's 1st and some from her 2nd marriage we can specifically identify the dna we've inherited from Emma.
Which will be very handy as more matches arrive at those spots.
I thought that nice long segment on chromosome 18 might bring in a few more matches to explore for some ancestral hints, but no, not yet, just two small matches.


For quick reference, the last two shapshots were
Click to enlarge
Click to enlarge

Thursday, 15 January 2015

Henderson Chromosome Map

Results have arrived in from another branch of the family of James HENDERSON & Amelia MILLAR.
Further corroboration of one segment, and one newly identified one.
So time to update the chromosome map.
Check out http://familytree.lornahen.com/spHENDERSON.htm for the current state of play.

Tuesday, 18 November 2014

A few more CLINTON/PARKER dna snippets

Slowly but surely...
Here's an updated chromosome map for the dna segments identifiable as being inherited from the common ancestors of William CLINTON and Jemima PARKER who married in London in 1810.

With many thanks to the two cousins found amongst our matches at 23andme - you have added new segments to the map.
One day this will help us find more about one or other of the ancestors of William and Jemima!

A small increase in knowledge of the map published in June.

Anyone else claiming descent from William and Jemima would be MOST welcome to add to our sum of knowledge.
Order a FamilyFinder kit*, and join the autosomal DNA project FFLornaHen!

* using this link to order gives WikiTree something towards their wonderful free collaborative tree.

Saturday, 23 August 2014

Maternal chromosome map

While I'm in dna snapshot mode, here's an updated picture of my maternal chromosome map.
Lots of gaps, but an increasing amount of information that will allow identification of likely areas to focus on for matches.
Click to enlarge

Thursday, 10 July 2014

Chromosome map update

Inspired by the GRAHAM dna story over the last two posts (and finally figuring out an easier way to produce the formatted data required), here's the current state of own chromosome maps.
I don't yet know whether any traces of this GRAHAM dna can be detected in my own genes (as opposed to my maternal aunts') as not all of those involved have uploaded to GEDMatch, yet, for the smaller segments to be checked.

The links to the respective surnames involved are to one of WikiTree's wonderful DNA features.
Just some of the more distant lines identified are added as labels on this post.

Paternal side map, ie my Dad's HENDERSON and DAVIDSON ancestry (Surnames involved):

Maternal side map, ie my Mum's ANDREWS and ROWE ancestry (Surnames involved):
Quite a few empty spots to go yet, not sure I'll live long enough to fill in all the gaps.

Wednesday, 9 July 2014

GRAHAMs galore

The GRAHAM families of colonial Delaware/Virginia/North Carolina continue to provide interesting research opportunities as we explore the connection to my Cumberland (ENG) GRAHAMs  indicated by our autosomal dna matches (refer earlier post here).

Contact with each match is gradually eliciting responses with further information - at least for those without impossible-to-get-past spam filters on their email.
Thankfully the latter are rare but if someone posts an email address on a dna site expecting contact from matches, it would be nice if you could actually contact them.

The most interesting discovery/lead is the addition of the family of Archibald & Margaret (SHED?) GRAHAM of Augusta Co., Virginia > Patterson Springs, Cleveland Co., North Carolina into the growing, well triangulated group.

As a result of all of this activity, I've promoted the GRAHAMs from the Surname chart section of my website to the Surname pages section.

Check out the GRAHAM page which attempts to pull this information together.
Included here, as well as there, is the current state of knowledge of dna identifiable as belonging to whomsoever is the shared ancestor of:
  • Andrew GRAHAM of Fauld, Longtown, Cumberland, England
  • James & Elizabeth (?ARSKIN/?ADAIR or ??, later OGLE) GRAHAM of New Castle, Delaware, America
  • Archibald & Margaret (?SHED) GRAHAM of Augusta Co., Virginia, America > Patterson Springs, Cleveland Co., North Carolina, America
In the interests of accuracy I do have to acknowledge that Andrew is just one of the GRAHAM lines in this ancestry, the actual link could well be back up an as yet undocumented history of any of the GRAHAMs who married into this GRAHAM tree, of which there are several. He is just the earliest I know of, the rest being to young to be the ancestor of James and/or Archibald.

My WorldConnect Database LornaPotential has been updated to include some of the above Archibald and James GRAHAM families as research proceeds (Archibald, James).

If anyone from these families has tested their autosomal dna from any of ancestry, 23andme and FamilyTreeDNA and we've not been in touch recently about any matches, please do make yourselves known - preferably with a GEDMatch id if you have one - and we may be able to add a few more segments to the above.

Wednesday, 25 June 2014

Inching backward

Knowledge of my mysterious Clinton/Parker ancestors has increased.
Analysis of FamilyFinder results just in for a 3rd cousin shows the following dna segments represent Clinton/Parker (or earlier ancestral lines) dna.
The FamilyFinder results don't show any others helpfully overlapping the above kits at the same points, so we aren't that much further ahead yet in finding previously unknown relations who can help figure out where William CLINTON came from, or any further hints about Jemima PARKER.

GEDMatch results yet to be explored.

Anyone else claiming descent from William and Jemima would be MOST welcome to add to our sum of knowledge.
Order a FamilyFinder kit*, and join the autosomal DNA project FFLornaHen!

* using this link to order gives WikiTree something towards their wonderful free collaborative tree.

Thursday, 13 March 2014

Chromosome map update

The above is an update on my earlier Chromosome picture, but using a more comprehensive tool, thanks to Kitty Cooper's ChromosomeMapper.
The reason for this update is the small orange segment of dna on chromosome 15, a newly detected, triangulated match* between myself, two maternal aunts and Richard, my 6th cousin once removed.
I and the aunts descend from Elizabeth ALGAR and Richard PEEK, Richard descends from Elizabeth's brother Samuel ALGAR of Yealmpton, Devon.
Their parents, Samuel ALGAR & Sarah LOWRY married in 1720, at Yealmpton.

There aren't quite as many unmapped areas as all the grey indicates on the above, I've simply left off the match segments from the very close relations where there is insufficient information on matches to enable segments to be tied to specific earlier ancestors.

To identify more of the grey bits, and thus help break through some of the brick walls, I would particularly love to hear from descendants of the following of my ancestral lines who may be interested in exploring their genetic heritage, and thus help pinpoint where some of the many  matches "fit":
- William CLINTON & Jemima PARKER
- Robert TURNBULL & Eleanor SCOTT
- Andrew GRAHAM & Jane GRAHAM
- William BATY & Sarah BATY
- John DAVIDSON & Agnes FAIRBAIRN
Check out my FamilyFinder project FFLornaHen, and the FAQs about FamilyTree DNA's  FamilyFinder test, and if willing to help, please contact me (details on footer of most of my webpages)

* for an explanation on mapping and triangulation, see this article in Roberta Estes' DNAeXplained blog